YATO YT-44625 brand metal drill sets Designed for professional applications: drilling in high-quality stainless steel, structural steel and cold-rolled steel. • HSS 4241 steel provides several times faster drilling and maintains resistance to damage and dulling, maintaining drill geometry• cross-blade „split point” with an apex angle of 135° enables drilling without prior scoring, guaranteeing perfect centering• quickly dissipate heat when drilling in hard steel, without burning the drill bits• lower friction coefficient reduces the adhesion of swirlsoros and filings to the drill bits• overall length: 150 mm• working length: 75 mm• shank: 1/2"• packaged in plastic boxes Drill bits: 14, 16, 18, 20 mm